Hi, I installed the new Fedora17 64 bit and to do so needed to add acpi=off to kernel argument. Installation was fine afterwards. I installed in a dual-boot system with windows 7 being the other boot option. Everything seems find when logging in to Fedora. When powering off using the normal commands, it hangs with the blue f logo on the screen (or tilted infinity sign). This is a repeatable problem and it occurs whether or not the laptop is plugged in or on battery. I have to hit the power button to power off the laptop. On power-up, I do not see any error messages.
I looked at /var/log/messages and saw this sequence of events (I skipped some).
jun 8 00:57:42 Caught signal 15, shutting down normally.
" GsmManager: ending phase END_SESSION
" " : starting phase EXIT
" stopped client
" : ending phase EXIT
" gdm-simple-slave: WARNING: Child process 891 was already dead.
00:58:22 localhost kernel: [ 90.648539] psmouse serio4: TouchPad at isa0060/serio4/input0 list sync at byte 1
00:58:38 locahost bluetoothd: bluetoothd Terminating
00:58:38 localhost kernel: Kernel logging (proc) stopped.
00:58:38 localhost rsyslogd: [origin software="rsyslogd" swVersion="5.8.10" x-pid .. www.rsyslog.com" exiting on signal 15.